The P7 Drop Safety Parts "Packages" are broken down into those of the P7 (PSP) (TOP) and those for the P7M8/P7M13 (BOTTOM). The Old-style parts are on the Left side, the New-style parts on the Right. There were 8 parts changed in the P7 (PSP) and 5 parts changed in the newer P7M8/M13 (the other 3 were already in the P7M8/M13). The affected areas on the New-style parts are highlighted with green paint pen. The easiest to identify in an assembled pistol are those on the Sear Bar (steeper top angle) and especially the Cocking Lever (small retangular protrusion just below the top outside corner). A few of the descriptions vary from other HK lists (Firing Pin Block is the Drop Safety Catch, Seal Bar is the Sear Lever, Squeeze Cocker is the Cocking Lever, etc.). Serial number ranges are not always valuable in determining which P7's have which parts as many were updated after shipment from the factory.